Evidence š§µ
2010
Nicotine vaping avoids combustion (the main source of smoking harm), early peer-reviewed lab work comparing cigarette smoke vs e-cig aerosol characteristics
āConventional and electronic cigarettes (e-cigarettes) have different smoking characteristicsā
academic.oup.com/ntr/articleā¦
2011
Nicotine vaping is less harmful than continuing to smoke (harm reduction framing supported by the then-available evidence base)
āElectronic Cigarettes as a Harm Reduction Strategy for Tobacco Control: A Step Forward or a Repeat of Past Mistakesā
vaportechnology.org/wp-conteā¦
2012
Nicotine vaping is less harmful than continuing to smoke (measured indoor-air pollutants far lower vs cigarette smoke)
āComparison of the effects of e-cigarette vapor and cigarette smoke on indoor air qualityā
articles.researchsolutions.cā¦
2013
Nicotine vaping is less harmful than continuing to smoke (cigarette smoke extract far more cytotoxic than e-cig vapor extract in vitro)
āCytotoxicity evaluation of electronic cigarette vapor extract⦠comparison with tobacco cigarette smoke extractā
gwern.net/doc/nicotine/2013-ā¦
2014
Nicotine vaping is less harmful than continuing to smoke (key toxicants measured much lower in vapor vs smoke)
āLevels of selected carcinogens and toxicants in vapour from electronic cigarettesā
tobaccocontrol.bmj.com/conteā¦
2015
Nicotine vaping is less harmful than continuing to smoke (TSNAs are minimal in e-cig liquid/aerosol; plus ādry puffā conditions matter for aldehydes)
āTobacco-Specific Nitrosamines in Electronic Cigarettes: Comparison between Liquid and Aerosol Levelsā
mdpi.com/1660-4601/12/8/9046
2016
Nicotine vaping is less harmful than continuing to smoke (broad toxicant panel shows dramatically lower emissions vs cigarette smoke)
āChemical Composition of Aerosol from an E-Cigarette: A Quantitative Comparison with Cigarette Smokeā
pubs.acs.org/doi/pdf/10.1021ā¦
2017
Nicotine vaping is less harmful than continuing to smoke (biomarkers of carcinogens/toxins far lower in long-term exclusive vapers vs smokers)
āNicotine, Carcinogen, and Toxin Exposure in Long-Term E-Cigarette and Nicotine Replacement Therapy Usersā
discovery.ucl.ac.uk/id/eprinā¦
2018
Nicotine vaping is less harmful than continuing to smoke (switching studies show toxicant biomarkers fall quickly when smokers switch)
āBiomarkers of Tobacco Exposure Decrease After Smokers Switch to an E-Cigarette or Nicotine Gumā
academic.oup.com/ntr/articleā¦
2019
Nicotine vaping is less harmful than continuing to smoke (population biomarker data: exclusive e-cig users show markedly lower toxicant exposure vs smokers)
āComparison of Nicotine and Toxicant Exposure in Users of Electronic Cigarettes and Cigarettesā
jamanetwork.com/journals/jamā¦
2020
Nicotine vaping is less harmful than continuing to smoke (comparative chemistry reviews continue to show substantially lower toxicant emissions vs cigarettes)
āThe Evolving E-cigarette: Comparative Chemical Analyses of E-cigarette Aerosolsā
frontiersin.org/journals/toxā¦
2021
Nicotine vaping is less harmful than continuing to smoke (fewer compounds lower concentrations in e-cig aerosol vs cigarette smoke)
āThe Chemical Complexity of e-Cigarette Aerosols Compared With the Smoke from a Tobacco Burning Cigaretteā
frontiersin.org/journals/cheā¦
2022
Nicotine vaping is less harmful than continuing to smoke (24-week randomized clinical trial: exposure/potential-harm biomarkers improve after switching)
āBiomarkers of Exposure and Biomarkers of Potential Harm⦠in a 24-week, Randomized, Clinical Trialā
academic.oup.com/ntr/articleā¦
2023
Nicotine vaping is less harmful than continuing to smoke (real-world biomarker comparisons: smokers highest; exclusive ENDS lower)
āComparison of biomarkers of exposure among US adult smokers, ENDS users, dual users and nonusers, 2018ā2019ā
nature.com/articles/s41598-0ā¦
2024
Nicotine vaping is less harmful than continuing to smoke (systematic review/meta-analysis: TSNA exposure is far higher in smokers than exclusive vapers)
āExposure to Tobacco-Specific Nitrosamines Among People Who Vape, Smoke, or do Neither: A Systematic Review and Meta-Analysisā
academic.oup.com/ntr/articleā¦
2025
Nicotine vaping is less harmful than continuing to smoke (comparative emissions synthesis: TSNAs lower in e-cig aerosol than cigarette smoke)
āTobacco-specific nitrosamine exposure from electronic cigarettes versus combustible cigarettesā
frontiersin.org/journals/oncā¦
When does, 'not enough evidence yet' stop being cautionary and turn into denial? 16 years of evidence on any product other than nicotine would have been policy already.
#Science